Tool special for grounded valve blockage removal

The invention relates to the technical field of process pipeline overhauling, and particularly discloses a tool special for grounded valve blockage removal. The tool comprises a blockage blowing pipe,a blockage blowing head connected with the lower end of the blockage blowing pipe, a sealed box arranged below the blockage blowing pipe, a check valve arranged on the upper portion of the blockage blowing pipe, and an adjusting valve. The tool is easy to operate and master, the grounded valve blockage removal requirements under the high-radioactivity environment are met, and the tool can be popularized to blockage removal work of different types of grounded valves under other radioactive occasions. 本发明涉及工艺管线检修技术领域，具体公开了种穿地阀堵塞疏通专用工具，包括吹堵管、与吹堵管下端相连的吹堵头、设于吹堵管下方的密封箱、设于吹堵管上部的止回阀和调节阀。本发明装置操作简单、易于掌握，满足在高放射性环境下穿地阀堵塞后的疏通需求，并可推广到其它放射性场所不同类型穿地阀堵塞疏通工作中。